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Numerical verification of properties of the fictitious elastic axis in asymmetric multistorey buildings
Author(s) -
Makarios T.,
Athanatopoulou A. M.,
Xenidis H.
Publication year - 2006
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.294
Subject(s) - principal axis theorem , parametric statistics , torsion (gastropod) , gyration , eccentricity (behavior) , structural engineering , horizontal and vertical , stiffness , geometry , mathematics , engineering , medicine , statistics , surgery , political science , law
In the present paper, the properties of the vertical fictitious elastic axis and of the horizontal fictitious principal axes of multistorey buildings were investigated using an extended parametric study. The parametric investigation has proved that the fictitious elastic centre, i.e. the point from which the vertical fictitious elastic axis (optimum torsion axis) and the horizontal fictitious principal axes of a multistorey building pass through, has properties which are close to the properties of the real elastic centre and the real horizontal principal axes of the single‐storey building. Therefore, the definition of the static eccentricity and torsional stiffness radii of gyration of a multistorey building are achieved using the fictitious elastic centre of the building. Copyright © 2005 John Wiley & Sons, Ltd.